13216306 has 16 divisors (see below), whose sum is σ = 21129984. Its totient is φ = 6185344.

The previous prime is 13216303. The next prime is 13216331. The reversal of 13216306 is 60361231.

It is not an unprimeable number, because it can be changed into a prime (13216303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 895 + ... + 5218.

It is an arithmetic number, because the mean of its divisors is an integer number (1320624).

Almost surely, 2^13216306 is an apocalyptic number.

13216306 is a deficient number, since it is larger than the sum of its proper divisors (7913678).

13216306 is a wasteful number, since it uses less digits than its factorization.

13216306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6185.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 13216306 is about 3635.4237717218. The cubic root of 13216306 is about 236.4304244022.

Adding to 13216306 its reverse (60361231), we get a palindrome (73577537).

The spelling of 13216306 in words is "thirteen million, two hundred sixteen thousand, three hundred six".